<template>
   <div class="icons">
     <swiper :options="swiperOption">
       <swiper-slide v-for="(page,index) of pages" :key="index">
       <div class="icon" v-for="item of page" :key="item.id">
         <div class="icon-img">
           <img class='icon-img-content' :src="item.imgUrl" alt="">
           <p class="icon-desc">{{item.desc}}</p>
         </div>
       </div>
         </swiper-slide>
     </swiper>

   </div>
</template>

<script>
  export default {
    name: "HomeIcons",
    props:{
      list:Array
    },
    data () {
       return {
         swiperOption:{
           autoplay:false
         }
       }
    },
    //计算属性,自带缓存
    computed:{
      pages () {
        const pages = []
        this.list.forEach((item,index) => {
          const page = Math.floor(index/8)
          if(!pages[page]){
              pages[page] = []
          }
          pages[page].push(item)
        })
        return pages
      }
    }
  }
</script>

<style lang="stylus" scoped>
  @import '~style/varibles.styl'
  @import '~style/mixins.styl'
.icons >>>.swiper-container
  height:0
  padding-bottom:50%
  /*background:green*/
  .icons
    margin-top:.1rem
  .icon
    position:relative
    overflow:hidden
    float:left
    width:25%
    height:0
    padding-bottom:25%
    /*background:red*/
  .icon-img
    position: absolute
    top:0
    left:0
    right:0
    bottom:.44rem
    box-sizing:border-box
    padding:.1rem
    /*background:blue*/
  .icon-img-content
    display:block
    margin:0 auto
    height:100%
  .icon-desc
    position:absolute
    left:0
    right:0
    /*bottom:0*/
    height:.44rem
    line-height:.44rem
    text-align: center
    color: $darkTextColor

    ellipsis()
</style>
